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High-order goods
High-order goods are expensive items purchased infrequently, such as cars, electronics or designer clothing.
Low-order goods
Low-order goods are necessity goods or convenience goods bought frequently, such as bread and hygiene items.
Megacity
A megacity is an urban area with a population exceeding 10 million. Megacities are a prominent feature of rapid urbanization in many MICs and some LICs.
Range
Range refers to the maximum distance that people are willing to travel to access a facility or service.
Settlement hierarchy
Settlement hierarchy ranks settlements by population size and by the number and rarity of services they provide.
Site
The site of a city refers to the specific physical location and characteristics of a place, including its geographic features that influence its location and development.